Two female officers were attacked and wounded by a man wielding a machete and shouting “Allahu Akbar” outside the main police station in the Belgian city of Charleroi on Saturday, police said.

The assailant was shot by a third officer and later died of his wounds, authorities said. The attacker’s identity and motive were not immediately known, Belgian Prime Minister Charles Michel said, but added the “first indications” suggested it was an act of terrorism.